18 Most ocean food chains depend on phytoplankton as primary producers. Where in the ocean do phytoplankton live?
throughout all ocean waters, because phytoplankton can tolerate a wide range of temperature and light conditions
within about 200 meters of the ocean shoreline, because phytoplankton depend on nutrients that wash into the water from
land
within about 200 meters of the ocean surface, because phytoplankton require light to survive
attached to shells along the ocean floor, because phytoplankton cannot float

answer:

convection currents in the magma drive plate tectonics. heat generated from the radioactive decay of elements deep in the interior of the earth creates magma (molten rock) in the aesthenosphere. the aesthenosphere (70 ~ 250 km) is part of the mantle, the middle sphere of the earth that extends to 2900 km.

d. groundwater flows through the subsoil and deposits minerals.

glacial erosion, the picking up and movement of earth beneath a glacier, is also referred to as plucking. erosion and transportation of individual pieces of bedrock, especially large "joint block occur as a result of this glacial erosion. plucking is type of erosion in which rocks become frozen into the bottom and sides of the glacier.as the glacier moves downhill it 'plucks' the rocks frozen into the glacier from the ground.